Example usage for java.io DataOutputStream writeUTF

Introduction

In this page you can find the example usage for java.io DataOutputStream writeUTF.

Prototype

public final void writeUTF(String str) throws IOException 

Source Link

Document

Writes a string to the underlying output stream using modified UTF-8 encoding in a machine-independent manner.

Usage

From source file:org.apache.nifi.distributed.cache.client.DistributedMapCacheClientService.java

@Override
public <K, V> boolean putIfAbsent(final K key, final V value, final Serializer<K> keySerializer,
        final Serializer<V> valueSerializer) throws IOException {
    return withCommsSession(new CommsAction<Boolean>() {
        @Override//w ww . j  av a2 s  .c o  m
        public Boolean execute(final CommsSession session) throws IOException {
            final DataOutputStream dos = new DataOutputStream(session.getOutputStream());
            dos.writeUTF("putIfAbsent");

            serialize(key, keySerializer, dos);
            serialize(value, valueSerializer, dos);

            dos.flush();

            final DataInputStream dis = new DataInputStream(session.getInputStream());
            return dis.readBoolean();
        }
    });
}

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From source file:org.apache.nifi.distributed.cache.client.DistributedMapCacheClientService.java

@Override
public <K, V> V get(final K key, final Serializer<K> keySerializer, final Deserializer<V> valueDeserializer)
        throws IOException {
    return withCommsSession(new CommsAction<V>() {
        @Override//from  w  ww.j  ava2 s .  c  o  m
        public V execute(final CommsSession session) throws IOException {
            final DataOutputStream dos = new DataOutputStream(session.getOutputStream());
            dos.writeUTF("get");

            serialize(key, keySerializer, dos);
            dos.flush();

            // read response
            final DataInputStream dis = new DataInputStream(session.getInputStream());
            final byte[] responseBuffer = readLengthDelimitedResponse(dis);
            return valueDeserializer.deserialize(responseBuffer);
        }
    });
}

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From source file:org.apache.nifi.distributed.cache.client.DistributedMapCacheClientService.java

@Override
public <K, V> V getAndPutIfAbsent(final K key, final V value, final Serializer<K> keySerializer,
        final Serializer<V> valueSerializer, final Deserializer<V> valueDeserializer) throws IOException {
    return withCommsSession(new CommsAction<V>() {
        @Override/*from   w  w w  .  j  av a  2  s  .  c o  m*/
        public V execute(final CommsSession session) throws IOException {
            final DataOutputStream dos = new DataOutputStream(session.getOutputStream());
            dos.writeUTF("getAndPutIfAbsent");

            serialize(key, keySerializer, dos);
            serialize(value, valueSerializer, dos);
            dos.flush();

            // read response
            final DataInputStream dis = new DataInputStream(session.getInputStream());
            final byte[] responseBuffer = readLengthDelimitedResponse(dis);
            return valueDeserializer.deserialize(responseBuffer);
        }
    });
}

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From source file:org.apache.nifi.distributed.cache.client.DistributedMapCacheClientService.java

@Override
public <K, V> CacheEntry<K, V> fetch(final K key, final Serializer<K> keySerializer,
        final Deserializer<V> valueDeserializer) throws IOException {
    return withCommsSession(session -> {
        validateProtocolVersion(session, 2);

        final DataOutputStream dos = new DataOutputStream(session.getOutputStream());
        dos.writeUTF("fetch");

        serialize(key, keySerializer, dos);
        dos.flush();//from   www . j a  v a 2  s  .com

        // read response
        final DataInputStream dis = new DataInputStream(session.getInputStream());
        final long revision = dis.readLong();
        final byte[] responseBuffer = readLengthDelimitedResponse(dis);

        if (revision < 0) {
            // This indicates that key was not found.
            return null;
        }

        final StandardCacheEntry<K, V> standardCacheEntry = new StandardCacheEntry<>(key,
                valueDeserializer.deserialize(responseBuffer), revision);
        return standardCacheEntry;
    });
}

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From source file:org.apache.nifi.distributed.cache.client.DistributedMapCacheClientService.java

@Override
public <K, V> void put(final K key, final V value, final Serializer<K> keySerializer,
        final Serializer<V> valueSerializer) throws IOException {
    withCommsSession(new CommsAction<Object>() {
        @Override//ww  w.  j  a  va  2 s.  c o m
        public Object execute(final CommsSession session) throws IOException {
            final DataOutputStream dos = new DataOutputStream(session.getOutputStream());
            dos.writeUTF("put");

            serialize(key, keySerializer, dos);
            serialize(value, valueSerializer, dos);

            dos.flush();
            final DataInputStream dis = new DataInputStream(session.getInputStream());
            final boolean success = dis.readBoolean();
            if (!success) {
                throw new IOException(
                        "Expected to receive confirmation of 'put' request but received unexpected response");
            }

            return null;
        }
    });
}

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From source file:de.burlov.ultracipher.core.Database.java

public String computeChecksum() {
    DigestOutputStream digest = new DigestOutputStream(new RIPEMD160Digest());
    DataOutputStream out = new DataOutputStream(digest);

    try {// w  w  w  . j  ava 2  s . c om
        for (Entry<String, Long> entry : deletedEntries.entrySet()) {
            out.writeUTF(entry.getKey());
            out.writeLong(entry.getValue());
        }
        for (DataEntry entry : entries.values()) {
            out.writeUTF(entry.getId());
            out.writeUTF(entry.getName());
            out.writeUTF(entry.getTags());
            out.writeUTF(entry.getText());
        }
        out.close();
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
    return new String(Hex.encode(digest.getDigest()));
}

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From source file:RMSGameScores.java

/**
 * Add a new score to the storage./* ww w .  ja va 2s  .  c o m*/
 * 
 * @param score
 *            the score to store.
 * @param playerName
 *            the name of the play achieving this score.
 */
public void addScore(int score, String playerName) {
    // Each score is stored in a separate record, formatted with
    // the score, followed by the player name.
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    DataOutputStream outputStream = new DataOutputStream(baos);
    try {
        // Push the score into a byte array.
        outputStream.writeInt(score);
        // Then push the player name.
        outputStream.writeUTF(playerName);
    } catch (IOException ioe) {
        System.out.println(ioe);
        ioe.printStackTrace();
    }

    // Extract the byte array
    byte[] b = baos.toByteArray();
    try {
        // Add it to the record store
        recordStore.addRecord(b, 0, b.length);
    } catch (RecordStoreException rse) {
        System.out.println(rse);
        rse.printStackTrace();
    }
}

---

From source file:bankingclient.DNFrame.java

public DNFrame(MainFrame vmain) {

    initComponents();//from   www.  j  ava 2 s .c o m

    this.jTextField1.setText("");
    this.jTextField2.setText("");
    this.jTextField_cmt.setText("");
    this.jTextField_sdt.setText("");

    this.main = vmain;
    noAcc = new NewOrOldAccFrame(this);
    this.setVisible(false);
    jL_sdt.setVisible(false);
    jL_cmtnd.setVisible(false);
    jTextField_cmt.setVisible(false);
    jTextField_sdt.setVisible(false);

    jBt_dn.addActionListener(new ActionListener() {

        public void actionPerformed(ActionEvent e) {
            if (!jCheck_qmk.isSelected()) {
                try {
                    Socket client = new Socket("113.22.46.207", 6013);
                    DataOutputStream dout = new DataOutputStream(client.getOutputStream());
                    dout.writeByte(2);
                    dout.writeUTF(jTextField1.getText() + "\n" + jTextField2.getText());
                    dout.flush();
                    while (true) {
                        break;
                    }
                    DataInputStream din = new DataInputStream(client.getInputStream());
                    byte check = din.readByte();
                    if (check == 1) {
                        noAcc.setVisible(true);
                        DNFrame.this.setVisible(false);
                        noAcc.setMainCustomer(jTextField1.getText());

                    } else {
                        JOptionPane.showMessageDialog(new JFrame(),
                                "Tn ?ang Nhp Khng Tn Ti, hoac mat khau sai");
                    }

                } catch (Exception ex) {
                    ex.printStackTrace();
                    JOptionPane.showMessageDialog(rootPane, "C Li Kt Ni Mng....");
                }
            } else if ((!jTextField_cmt.getText().equals("")) && (!jTextField_sdt.getText().equals(""))
                    && (NumberUtils.isNumber(jTextField_cmt.getText()))
                    && (NumberUtils.isNumber(jTextField_sdt.getText()))) {
                try {
                    Socket client = new Socket("113.22.46.207", 6013);
                    DataOutputStream dout = new DataOutputStream(client.getOutputStream());
                    dout.writeByte(9);
                    dout.writeUTF(jTextField1.getText() + "\n" + jTextField_sdt.getText() + "\n"
                            + jTextField_cmt.getText());
                    dout.flush();
                    DataInputStream din = new DataInputStream(client.getInputStream());
                    byte check = din.readByte();
                    if (check == 1) {
                        noAcc.setVisible(true);
                        DNFrame.this.setVisible(false);
                        noAcc.setMainCustomer(jTextField1.getText());
                    } else {
                        JOptionPane.showMessageDialog(new JFrame(), "Khong dang nhap duoc, thong tin sai");
                    }
                } catch (Exception ex) {
                    ex.printStackTrace();
                }
            } else {
                JOptionPane.showMessageDialog(new JFrame(), "Can dien day du thong tin va dung mau");
            }
        }
    });
    jBt_ql.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent e) {
            main.setVisible(true);
            DNFrame.this.setVisible(false);
        }
    });
    jCheck_qmk.addActionListener(new ActionListener() {
        @Override
        public void actionPerformed(ActionEvent e) {
            if (jCheck_qmk.isSelected()) {
                jL_sdt.setVisible(true);
                jL_cmtnd.setVisible(true);
                jTextField_cmt.setVisible(true);
                jTextField_sdt.setVisible(true);
            } else {
                jL_sdt.setVisible(false);
                jL_cmtnd.setVisible(false);
                jTextField_cmt.setVisible(false);
                jTextField_sdt.setVisible(false);
            }
        }
    });
}

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From source file:org.outerrim.snippad.ui.swt.dnd.WikiTransfer.java

/**
 * Writes the given WikiWord to the output stream.
 *
 * @param word//from   w w  w. j ava 2  s  .  c  o m
 *            The word to write
 * @param dataOut
 *            The stream to write to
 * @throws IOException
 */
private void writeWikiWord(final WikiWord word, final DataOutputStream dataOut) throws IOException {
    /*
     * Serialization format is as follows: (String) name of the word
     * (String) wiki text (int) number of child words (WikiWord) child 1 ...
     * repeat for each child
     */
    dataOut.writeUTF(word.getName());
    dataOut.writeUTF(word.getWikiText());
    List children = word.getWikiWords();
    LOG.debug("Word has " + children.size() + " children");
    dataOut.writeInt(children.size());
    for (int i = 0, size = children.size(); i < size; ++i) {
        writeWikiWord((WikiWord) children.get(i), dataOut);
    }
}

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From source file:com.exzogeni.dk.http.cache.DiscCacheStore.java

private void saveMetaFile(@NonNull File metaFile, @NonNull Map<String, List<String>> metaHeaders, long maxAge)
        throws IOException {
    final AtomicFile af = new AtomicFile(metaFile);
    final FileOutputStream fos = af.startWrite();
    try {//from   ww  w. j  a  va 2s.c  om
        final DataOutputStream dat = new DataOutputStream(new BufferPoolOutputStream(fos));
        dat.writeLong(System.currentTimeMillis() + maxAge);
        dat.writeInt(metaHeaders.size());
        for (final Map.Entry<String, List<String>> header : metaHeaders.entrySet()) {
            dat.writeUTF(header.getKey());
            dat.writeInt(header.getValue().size());
            for (final String value : header.getValue()) {
                dat.writeUTF(value);
            }
        }
        IOUtils.closeQuietly(dat);
        af.finishWrite(fos);
    } catch (IOException e) {
        af.failWrite(fos);
        af.delete();
        throw e;
    }
}

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